MARGRET DUNCAN MD
NPI 1114940434
Family Medicine in Holland, MI

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment
336 S RIVER AVE, HOLLAND, MI 49423(616) 394-3788 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Margret Duncan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGRET DUNCAN MD (NPI 1114940434) is an individual family medicine provider in Holland, Michigan, licensed in Michigan (4301070620) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Wayne State University School Of Medicine (1997).

NPPES Registry Identity

NPI1114940434
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameMARGRET DUNCANCredential: MD
Location Address336 S RIVER AVEHolland, MI 49423-3326
Mailing Address336 S River AveHolland, MI 49423-3326
Sole ProprietorNo
Medical School CMSWayne State University School Of MedicineGraduated 1997
Enumeration DateJuly 26, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1114940434 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in MI · 4301070620
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
336 S RIVER AVE, Holland, MI 49423

Other Identifiers 1

Medicare ID-Type UnspecifiedN91970 005MI

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Margret Duncan Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729040415
PECOS Enrollment IDI20041104000095
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
77 services36 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
32 services19 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
30 services20 patients
Assessment of emotional or behavioral problems 96127
Assessment of emotional or behavioral problems involves a thorough evaluation of your feelings, thoughts, and behaviors. It's a process where professionals study patterns over time to identify potential issues like anxiety, depression, or other mental health conditions.
12 services11 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Spectrum Health

Acute Care Hospitals · Grand Rapids, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230038
Location100 Michigan St NEGrand Rapids, MI 49503 · Kent County
Emergency services Birthing friendly

Holland Community Hospital

Acute Care Hospitals · Holland, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230072
Location602 Michigan AveHolland, MI 49423 · Ottawa County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49423 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
7 suppliers18 claims83 services$4.84 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
2 suppliers15 claims15 services$184.43 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
336 S RIVER AVE
HOLLAND, MI 49423
Physician Assistant
336 S RIVER AVE
HOLLAND, MI 49423
Family Medicine
336 S RIVER AVE
HOLLAND, MI 49423
Family Medicine
336 S RIVER AVE
HOLLAND, MI 49423
Social Worker
336 S RIVER AVE
HOLLAND, MI 49423
Durable Medical Equipment & Medical Supplies
336 S RIVER AVE
HOLLAND, MI 49423
Family Medicine
336 S RIVER AVE
HOLLAND, MI 49423
Physician Assistant
336 S RIVER AVE
HOLLAND, MI 49423

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margret Duncan's NPI number?

The NPI number for Margret Duncan is 1114940434. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Margret Duncan located?

Margret Duncan practices at 336 S River Ave, Holland, MI 49423. The listed phone number is (616) 394-3788.

What is Margret Duncan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Margret Duncan enrolled in Medicare?

Yes. Margret Duncan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Margret Duncan accept?

Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Margret Duncan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Margret Duncan affiliated with any hospitals?

According to CMS data, Margret Duncan is affiliated with Spectrum Health and Holland Community Hospital.

When was this NPI record last updated?

The NPPES record for Margret Duncan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.